DJI Agras T30 OEM Water Pump Plunger Assembly

The DJI Agras T30 OEM Water Pump Plunger Assembly is the complete plunger water pump of the DJI Agras T30's liquid spray system, supplied as one assembly with its signal wire. As shown in the product images, it is a black pump with a cylindrical motor section, a stepped pump head carrying the liquid ports and fittings, round mounting points on the body, and a signal wire with a white sleeve running down the side to a blue-capped plug at the top. It draws spray liquid from the tank and drives it under pressure toward the nozzles, and it is the part of the spray system that does the work every other spray part depends on. It belongs to the spray system, it is identified for the DJI Agras T30, and it is supplied brand new as a complete assembly, not as a head, a plunger or a seal. Operators usually reach it while searching for a T30 water pump, a T30 plunger pump, an Agras T30 spray pump, a T30 pump that will not run, or a T30 pump error that will not clear. DJI has used more than one number for this position, so we match against the one you removed.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

Ares Acres also ships agricultural drone parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T30 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T30, spray system pump position
• Matched by motor section, pump head shape, port and fitting layout, mounting points and plug against the pump you removed
• Genuine DJI OEM complete plunger pump assembly with signal wire, brand new

Photograph the pump you removed, with its head, its ports and its plug in view, and send it to us. We will match it for you, so the right pump arrives first time.

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📦 Package Includes

• 1 × DJI Agras T30 OEM Water Pump Plunger Assembly with its signal wire and plug, as shown in the product images

One complete pump. The order is a single assembled plunger water pump: the motor section, the pump head and the signal wire with its blue-capped plug, together as one unit. It is not a pump head on its own, not a single plunger, and not a seal kit.

What is part of the assembly: the black cylindrical motor section, the stepped pump head with its liquid ports and fittings, the round mounting points on the body, and the signal wire with its white sleeve and blue-capped plug. These come with the pump because they are the pump.

Not included: hoses, hose clamps, the strainer or filter, the flow meter, the spray tank, nozzles, fixing screws, and any mounting bracket on the aircraft. Each of these is a separate part or stays with the aircraft.

Nothing is included because it appears in a photograph. If an image shows packing material, a surface or anything not named above, it is not part of the order. The order is one pump.

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🔧 Component Overview

A spray aircraft is a pump with wings. Everything the T30 is sent into the field to do, it does through this assembly: the tank holds the liquid, the nozzles shape it, the flow meter measures it, and the pump is what moves it.

As shown in the product images, the assembly has these working features:

• The motor section — the black cylindrical body that drives the pump
• The pump head — the stepped lower section that carries the liquid ports and fittings, where liquid comes in from the tank and leaves under pressure
• The mounting points — round mounting points on the body that locate the pump on the aircraft
• The signal wire — a lead with a white sleeve running down the side of the pump to a blue-capped plug at the top, which connects the pump to the aircraft

The word plunger describes how the pump moves liquid. Inside the head, plungers move back and forth and push a fixed volume of liquid on every stroke. That is why a plunger pump can hold pressure against a row of nozzles, and why its polished plungers and the seals they run in are the parts that wear.

Where it sits and what it touches:

• Position: the T30's spray system, between the tank and the spray lines
• Liquid in: from the tank, through the strainer and the inlet hose to the pump head
• Liquid out: from the pump head, through the flow meter and the spray lines to the nozzles
• Electrical: through its signal wire and blue-capped plug to the aircraft
• System: spraying, at the heart of it

A spray pump on an agricultural aircraft works in hard conditions. Over a season it sees:

• Long running periods at pressure on every spraying sortie
• Chemical mixes, wettable powders and residues passing through its head
• Grit and debris that get past a strainer that is damaged or not cleaned
• Running dry when a tank empties or an inlet draws air
• Water and residue around the signal wire and its plug
• Vibration and knocks from loading, transport and landings

Pumps are replaced as complete assemblies when the motor section has failed, when the signal wire or plug is damaged at the pump, when the head and the motor have both been damaged, or when the pump has been run dry or contaminated badly enough that rebuilding it piece by piece makes no sense.

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⚙️ Functional Purpose

The pump's engineering role is to move a metered volume of liquid against the resistance of the spray lines and nozzles, steadily, for as long as the aircraft sprays.

In the T30's spray system it:

• Draws liquid from the tank through the inlet side of the head
• Drives that liquid under pressure through the outlet side toward the nozzles
• Converts the motor section's rotation into the plungers' back-and-forth stroke
• Connects to the aircraft through its signal wire and plug

Because the plungers move a fixed volume each stroke, the pump's output follows its speed. When the pump is healthy and the lines are clear, a faster pump moves more liquid. When something on the suction side starves it, or the plungers and seals have worn, the pump keeps running but moves less than it should.

What the pump does not do matters as much:

• It does not measure flow; the flow meter does
• It does not filter the liquid; the strainer and filters do
• It does not shape the spray; the nozzles do
• It does not hold the liquid; the tank does
• It does not decide the application rate on its own; the aircraft's settings and flight speed do

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🔍 Diagnosis — replace the whole pump only when the fault is in the part only the whole pump contains

The T30's pump can be serviced at three levels, and each level has its own part. The plunger is one part. The pump head is another. The complete assembly, motor section, head and signal wire together, is this one. The right repair is the smallest one that removes the fault, and the way to find it is to work out where the fault actually lives.

Start with the question the whole assembly answers: does the pump run?

• The pump does not run at all, or runs intermittently: check the aircraft-side power and connection, then the signal wire and blue-capped plug at the pump; a fault inside the motor section or in the pump's own wire is a complete-assembly fault, and this is the part
• The pump runs but moves too little liquid: the motor section is working; the fault is on the suction side, in the head, or in the plungers and seals
• The pump runs but leaks at the head: look at the head and its seals; a cracked head body is the pump head, not the complete pump
• The pump runs, pressure has faded, and a plunger shank shows a score under raking light: the plunger is worn; the plunger base is the part

Settle low flow before you blame the pump. Run the spray system into a container for a measured time and compare the result with what the aircraft reports. A low result with a running pump points first at the inlet: a clogged or torn strainer, a kinked or split inlet hose, air drawn in at a fitting, or an empty tank. A pump starved on its suction side moves little and wears fast, and a new pump fitted to the same starved inlet will do the same.

Signs that point at the complete assembly:

• The motor section does not turn with power confirmed at the plug
• Burnt, cut, crushed or corroded signal wire at the pump, or a broken or burnt plug
• A cracked motor section or a broken mounting point
• Damage to both the head and the motor section after a crash or a hard landing
• A pump that has been run dry or badly contaminated and now runs rough, hot or noisy

Clear these first, because they imitate a dead pump:

• The plug not seated or full of residue: unplug, clean, dry, reseat and retest
• An aircraft-side wiring or connection fault: confirm the pump is being powered before condemning it
• A blocked strainer or inlet: the pump starves, labours and moves little
• Air in the lines: bleed the system after any hose work
• A flow meter fault: a wrong flow reading with normal spray output is the meter, not the pump

A whole pump replaces every one of those smaller parts at once. That is the right answer when the motor section or the pump's own wire has failed, and the wrong one when a single plunger, a seal or a head is the only thing worn.

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⚠️ Common Replacement Indicators

Replace the complete water pump plunger assembly when inspection confirms one of these:

• The motor section does not run with power confirmed at the pump's plug
• The pump runs intermittently, and the fault stays with the pump when the plug and the aircraft-side wiring are confirmed good
• The signal wire is burnt, cut, crushed or corroded at the pump, or the plug is broken or burnt
• The motor section is cracked or a mounting point is broken
• The pump runs rough, hot or noisy after being run dry or contaminated
• The head and the motor section are both damaged

Inspect these first, because they produce similar symptoms:

• The plug and the aircraft-side connection, for residue, corrosion or a poor seat
• The strainer, inlet hose and tank outlet, for blockage, splits or air leaks
• The plungers, for scoring on the polished shank
• The pump head body, for cracks at the ports and fittings
• The flow meter, if the reported flow and the measured flow disagree

There is no fixed service interval for the complete pump. Replace it on evidence: a motor section or signal wire that has failed, or damage that reaches more than the head.

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📐 Specifications

Product name: DJI Agras T30 OEM Water Pump Plunger Assembly

DJI family: Agras

Primary aircraft: DJI Agras T30

Fitment basis: Identified for the DJI Agras T30

Variants: DJI T30

Aircraft system: Spraying — liquid pump

Component type: Complete plunger water pump assembly with signal wire

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 complete assembly

Form: Black pump with a cylindrical motor section, a stepped pump head with liquid ports and fittings, round mounting points, and a signal wire with a white sleeve running to a blue-capped plug at the top

Colour: Black body; blue plug cap

Pump type: Plunger pump

Flow rate: Not published for this part

Pressure: Not published for this part

Electrical rating: Not published for this part

Body material: Not published for this part

Dimensions: Not published for this part

Weight: Not published for this part

Connector: Blue-capped plug on the pump's signal wire

Mounting position: T30 spray system, between the tank and the spray lines

Installation method: Mounted at its mounting points, inlet and outlet hoses connected at the head, signal wire plugged in

Not included: Hoses, clamps, strainer or filter, flow meter, tank, nozzles, fixing screws, mounting bracket

Service adjustability: None — the pump is correct or it is not, with no adjustment that compensates for a wrong part

Condition: Brand new

Classification: DJI OEM spray-system component; complete assembly

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🛠️ Installation & Maintenance

Before installation

• Confirm the fault lives in the motor section, the signal wire or more than the head, so that the complete pump is the right repair
• Run a timed container test and clear the strainer, inlet hose and tank outlet, so a new pump is not fitted to a starved inlet
• Drain the tank and spray lines, and flush the system with clean water
• Power the aircraft fully down and remove the flight battery
• Photograph the old pump in place: hose routing at the head, mounting points and the route of the signal wire to its plug
• Compare the new pump with the old one: motor section, head shape, port and fitting positions, mounting points and plug

During installation

• Unplug the signal wire at its plug without pulling on the wire
• Release the inlet and outlet hoses at the head and catch any remaining liquid
• Remove the old pump from its mounting points
• Fit the new pump at the same mounting points, in the same orientation as the old one
• Reconnect the inlet and outlet hoses to the matching ports, using your photograph, and secure each clamp
• Route the signal wire along its original path, clear of moving parts and sharp edges, and seat the plug fully

After installation

• Fill the tank with clean water only for the first test
• Power up, prime and bleed the system until the flow is steady and free of air
• Check every fitting at the head for leaks under pressure
• Run a timed container test and compare it with what the aircraft reports
• Fly a short test with water before the first sortie with a chemical mix
• Record the replacement in the maintenance log

Maintenance between jobs. Flush the pump with clean water at the end of every spraying day, clean the strainer, keep the plug dry and free of residue, and never let the pump run dry for long. A pump that draws clean liquid through a clean strainer outlasts one that does not by a wide margin.

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🚜 Necessary For

This pump is for T30 operators and technicians whose fault is in the pump as a whole:

• DJI Agras T30 operators whose pump will not run with power confirmed at its plug
• T30 operators with a burnt, cut or crushed pump signal wire or plug
• T30 operators whose pump was run dry or contaminated and now runs rough or hot
• Agras service centres returning a crash-damaged T30 spray system to service
• Commercial spray applicators keeping a complete spare pump to stay in the field
• Growers flying their own T30 who want a whole pump on the shelf for the season

This is not the part you need if:

• The pump runs and a plunger shank shows a score under raking light; the DJI Agras T30 OEM Pump Plunger Base is the part
• Only the pump head body is cracked or leaking; the T30 water pump head is the part
• The pump runs but moves little, and the strainer, inlet hose or tank outlet is blocked, split or drawing air; fix the inlet
• The flow reading is wrong but the measured spray output is normal; check the DJI Agras T30 OEM Flow Meter
• You fly a T10; the DJI Agras T10 OEM Water Pump is the pump for that aircraft
• You fly a T16, T20, T40 or T50; this pump is identified for the T30 only

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💡 Why This Part Matters

The complete pump is the largest repair in the T30's spray system and the one most often chosen when a smaller one would do.

The pump can be serviced at three levels. A worn plunger has its own part. A cracked head has its own part. Only the motor section and the pump's own signal wire have no smaller part, and those are what this assembly is for. A pump that does not turn with power confirmed at its plug, a burnt or crushed signal wire at the pump, a pump that runs rough after being run dry, or damage that reaches both the head and the motor section: those are complete-pump faults, and the whole assembly is the honest answer.

Everything else is worth settling first. A pump that runs but moves little is usually starved on its suction side, and a new pump on the same inlet will be starved too. A pump that runs and has lost pressure is usually wearing at its plungers and seals. A pump that runs and leaks at a port is usually its head. A wrong flow number with a normal measured output is the meter.

That is the reason to ask whether the pump runs before anything else. If it does not, and the power at its plug is good, this assembly fixes it in one fitting. If it does, the fault is almost always in a smaller part, and the smaller part is the better repair.

When the whole pump is the answer, a new one restores the spray system: fit it at its mounting points, reconnect the hoses to the right ports, seat the plug, prime and bleed with clean water, and confirm the output with a timed container test.

If you are unsure which level of the pump you need, send us a photograph of the pump you removed and tell us what it does when powered. We will match it for you.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from the specifications above.

Canonical product name: DJI Agras T30 OEM Water Pump Plunger Assembly

Brand: DJI

DJI family: Agras

Primary aircraft: DJI Agras T30

Compatible models: DJI Agras T30

Fitment basis: Identified for the DJI Agras T30

Component: Complete plunger water pump assembly with signal wire

Aircraft system: Spraying

Installed position: Spray system, between the tank and the spray lines

Primary function: Draws spray liquid from the tank and drives it under pressure toward the nozzles

Form: Black pump; cylindrical motor section; stepped pump head with ports and fittings; round mounting points; signal wire with white sleeve to a blue-capped plug

Material number: DJI has used more than one number for this position; matched against the pump you removed

Quantity supplied: 1 complete assembly

Flow, pressure and electrical rating: Not published for this part

Not included: Hoses, clamps, strainer, flow meter, tank, nozzles, fixing screws, mounting bracket

Key diagnostic: Does the pump run with power confirmed at its plug; if not, the complete assembly; if it runs, the fault is usually in the inlet, the plunger or the head

Common misdiagnosis: A starved inlet or a worn plunger is answered with a whole new pump

Smaller repairs: Pump plunger base for a scored plunger; pump head for a cracked head; inlet and strainer for low flow from a running pump

Condition: Brand new

Part classification: DJI OEM spray-system component; complete assembly

Related parts: DJI Agras T30 OEM Pump Plunger Base; T30 water pump head; DJI Agras T30 OEM Flow Meter; DJI Agras T10 OEM Water Pump (T10 part)

Also searched as: T30 water pump; T30 plunger pump; Agras T30 spray pump; T30 pump assembly; T30 pump not working; T30 pump with signal wire

Disambiguation: Not a pump head alone, not a single plunger, not a seal kit, not the T10 water pump, not identified for the T16, T20, T40 or T50

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras retailer serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What is the DJI Agras T30 water pump plunger assembly? It is the complete plunger water pump of the T30's spray system: the motor section, the pump head with its ports and fittings, and the signal wire with its blue-capped plug, as one assembly.

Which aircraft does it fit? It is identified for the DJI Agras T30. Send us a photograph of the pump you removed and we will match it.

Will it fit my T10? No. The T10 has its own pump, the DJI Agras T10 OEM Water Pump.

Is it new? Yes. The pump is supplied brand new as a complete assembly.

Is this the whole pump or just the head? The whole pump: motor section, head and signal wire with plug. If only the head is cracked, the T30 water pump head is the smaller part.

My pump runs but sprays weakly. Do I need a new pump? Usually not. A running pump that moves little is most often starved on its suction side. Check the strainer, inlet hose and tank outlet, then the plungers, before replacing the whole pump.

My pump does not run at all. Is it this part? If power is confirmed at the pump's plug and the motor section still does not turn, yes. Clean and reseat the plug and check the aircraft-side wiring first.

How do I tell a worn plunger from a dead pump? A worn plunger still runs and has lost pressure; look for a score on the polished shank under raking light. A dead pump does not turn with power at its plug.

The flow reading is wrong. Is it the pump? Run the system into a container for a measured time. If the measured output is normal and the reading is wrong, check the DJI Agras T30 OEM Flow Meter, not the pump.

Does it come with hoses or a strainer? No. The order is the pump with its signal wire and plug. Hoses, clamps, the strainer, the flow meter and fixing screws are separate.

What flow rate and pressure is it? Flow, pressure and electrical figures are not published for this part. We match it against the pump you removed.

Can I fit it myself? Yes, with care. Photograph the hose routing first, fit the pump at its mounting points, reconnect each hose to the matching port, seat the plug, then prime and bleed with clean water.

What should I do after fitting it? Prime and bleed with clean water, check every fitting for leaks, run a timed container test, and fly a short water test before the first chemical sortie.

Why did my last pump fail? Common causes are running dry, a blocked or torn strainer letting grit through, residue left in the pump between jobs, and water reaching the plug. Flush with clean water after every spraying day.

What is the DJI part number? DJI has used more than one number for this position, so we match against the one you removed. Photograph the pump and send it to us.